DinoLog
Explainers
Clear answers to the questions people ask about dinosaurs, with the evidence behind them.
Explainers
T. rex vs Spinosaurus: How the Two Giants Compare
Spinosaurus was longer; T. rex was built heavier, with a bone-crushing bite. They also lived tens of millions of years and a continent apart. A fact-based comparison.
DinoDex team · 26 September 2026 · 4 min read
Explainers
Which Dinosaurs Lived in Brazil? A Guide to the Fossils
Brazil has some of the oldest dinosaurs known, a spinosaur named for the irritation it caused, and giant long-necked titanosaurs. A guide to the main finds.
DinoDex team · 26 September 2026 · 4 min read
Explainers
How Complete Are Dinosaur Fossils? Less Than You Think
Complete dinosaur skeletons are rare, and many species are known from a skull or a handful of bones. Here is why, and what it means for the numbers you read.
DinoDex team · 26 September 2026 · 5 min read
Explainers
Did Velociraptor Have Feathers? What the Fossils Show
Yes. Bumps on a Velociraptor forearm bone show where large wing feathers were anchored. Here is the evidence, and what the feathers were probably for.
DinoDex team · 26 September 2026 · 4 min read
Explainers
Where Did Spinosaurus Live? Its World in North Africa
Spinosaurus lived in the river systems of North Africa about 100 to 94 million years ago. Here is where its fossils come from and what its world looked like.
DinoDex team · 26 September 2026 · 4 min read
Explainers
How Big Was T. rex? Length, Height and Weight
About 12 to 13 metres long and 6 to 8 tonnes as an adult. Here is what the best skeletons show, and why no single number tells the whole story.
DinoDex team · 26 September 2026 · 5 min read
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